i62 LEPIDOPTERA. 



B*. The blotch very little paler than the ground colour. 



/S. ohscurana, 

 A2. Fore wings mottled, brown, without dorsal blotch, 

 C. The mottling rich chocolate, with numerous yellow 

 streaks. S. ^omheriana. 



C-. The mottling purplish chocolate. S. janthinana, 



C^. The mottling pale silvery-purple. S. rufillana. 



1. S. populana, Falj\ ephippana, Hah. — Expanse 

 h inch (12 mm.). Slender; fore wings rather narrow, 

 black brown, with faint irregular yellowish lines and a 

 conspicuous yellow dorsal blotch sharply pointed back at 

 the apex. 



Antennae, palpi, head, thorax, and abdomen black-brown. 

 Fore wings rather narrow, costa almost straight, apex 

 very bluntly rounded ; black brown, much dusted behind 

 with golden yellow ; on the costa are three or four pairs of 

 curved pale yellow streaks or dots; on the middle of the 

 dorsal margin is an erect, somewhat triangular pale yellow 

 spot or blotch with the apex pointed and bent ; in the 

 middle of its base is a triangular brown-black dot ; on the 

 hinder area are some extremely faint silvery and yellowish 

 lines, and a hardly perceptible ocellus containing three black 

 lines ; cilia black-brown. Hind wings and their cilia black- 

 brown. Female similar. 



Undersides of all the wings leaden-black, except some 

 pale yellow costal dots. 



On the wing in July and August. 



Larva moderately active, plump, thickest in the middle 

 and having rather swollen segments ; dirty yellowish-white 

 tinged behind with green ; internal dorsal vessel irregular, 

 broad, brown two-thirds of its length, then dark green ; 

 raised dots indistinct, bearing delicate hairs; head rather 

 small black ; dorsal plate semi-circular, divided, shiny 

 black-brown ; anal plate and feet black. 



